Piper ARCHER III Pilot Operating Handbook page 372

SECTION 9
SUPPLEMENT 23
SECTION 3 - EMERGENCY PROCEDURES (continued)
Complete Electrical Failure
Standby Attitude Gyro ..........................SELECT Standby (STBY) power button
The STBY PWR annunciator will rapidly flash for
approximately one minute when aircraft power is lost.
STBY PWR must be selected, otherwise the gyro will auto
shutdown after approximately one minute.
Standby Attitude Gyro ..............................................................VERIFY ON and
Maintain aircraft control with reference to the standby airspeed, altimeter, and
attitude gyro indicators.
Battery Switch ................................................................................................OFF
Prior to descent:
Mixture ..............................................................................................FULL RICH
Throttle ......................................................................Set for approx. 500 feet per
Land as soon as possible.
Compass error may exceed 10 degrees with alternator
inoperative.
REPORT: VB-1611
9-170, 18 of 36
CAUTION
WARNING
REVISED: FEBRUARY 14, 2006
PA-28-181, ARCHER III
flag is pulled on gyro
minute descent at 122 KIAS
ISSUED: JULY 12, 1995